A rain gauge

Abstract

The present invention provides a rain gauge, which relates to the technical field of rain gauges. The rain gauge includes a detection mechanism, a rain collection main body, and a filtering device. The rain collection main body is provided with a concave rain receiving cavity, and a detection inlet is opened at the bottom of the rain receiving cavity. The detection mechanism is arranged inside the rain collection main body and is matched with the detection inlet for detecting the amount of rainwater entering from the detection inlet. The filtering device is installed at the detection inlet of the rain collection main body for filtering the rainwater entering the detection inlet. A pilot hole is formed between the filtering device and the rain collection main body, and the pilot hole conducts the detection inlet and the rain receiving cavity. The rain gauge provided by the present invention can solve the technical problem that it is not easy to effectively detect light rain or shower rain in the prior art, and can also improve the timeliness of detection and enhance the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of rain gauges, and more particularly, to a rain gauge. Background Art

[0002] Rainfall is one of the important meteorological parameters. People will detect rainfall through a series of measurement methods to achieve the purpose of predicting drought and flood disasters, etc.; in agricultural production, rainfall directly affects crop yields. A rain gauge is a device for detecting rainfall. Its principle is to detect and collect the amount of rainwater using a sensor, and record and transmit the collected data to a server. The rain gauge needs to collect rainwater first and then measure it. The part for collecting rainwater is generally in the form of a funnel. Limited by the device structure and cost, the volume of the rain gauge device is not too large, and the area for collecting rainwater is certain. When the rainfall is low or there is only a shower, the amount of rainwater collected is insufficient to form water droplets on the outer wall of the funnel or only forms a small number of water droplets. When the water droplets are not replenished by rainwater and no longer continue to converge and increase, due to the surface tension of the water droplets, they will probably adhere to the outer wall of the funnel and it is difficult to converge and flow into the detection area by gravity. After a shower, a small amount of water droplets will evaporate, resulting in missed detections. On the other hand, when the rain gauge is used outdoors, in order to prevent sand, debris, insects, etc. from entering the device, a filter screen is generally added in the middle of the rain collection funnel. There are many tiny pores on the filter screen. At the beginning of rainfall, some of the collected rainwater needs to wet the filter screen first and then flow into the detection area, which leads to a delay in the detection time and a reduction in timeliness. Once the device detects raindrops, it has usually been raining for some time, and the detected rainfall reaches the moderate rain or heavy rain range, which is quite different from the actual rainfall process and affects the user experience. In order to reduce such errors, compensation and correction are often required in data processing. However, due to the large differences in the geographical locations of the devices and the different rainfall models, it is difficult to unify the correction coefficients and the correction is difficult.

[0003] The rain gauges in the prior art are not easy to achieve effective detection in light rain or showers, and it is difficult to detect the rainfall amount at the initial stage of rainfall. Once the device detects rainfall, it is in the moderate rain or heavy rain range, resulting in a reduction in detection timeliness and affecting the user experience. Summary of the Invention

[0004] The objectives of the present invention include, for example, providing a rain gauge that can solve the technical problem in the prior art that it is not easy to achieve effective detection in light rain or showers, and can also improve the detection timeliness and enhance the user experience.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] The embodiments of the present invention provide a rain gauge, including a detection mechanism, a rain collection main body, and a filtering device.

[0007] The rainwater collection main body is provided with a concave rain receiving cavity, a detection inlet is opened at the bottom of the rain receiving cavity, and the detection mechanism is arranged inside the rainwater collection main body and is matched with the detection inlet for detecting the amount of rainwater entering from the detection inlet.

[0008] The filtering device is installed at the detection inlet of the rainwater collection main body for filtering the rainwater entering the detection inlet. A pilot hole is formed between the filtering device and the rainwater collection main body, and the pilot hole conducts the detection inlet and the rain receiving cavity.

[0009] The beneficial effects of the rain gauge provided by the present invention compared with the prior art include:

[0010] When the rain gauge is in the case of light rain or shower, a small amount of rainwater enters the rain receiving cavity and slides along the inner peripheral wall of the concave rain receiving cavity to the filtering device. Since the filtering device needs a certain time of infiltration to enable the rainwater to pass through the filtering device and enter the detection inlet to be detected by the detection mechanism, in the state of light rain or shower, the small rainfall or short rainfall time results in a long infiltration time of the filtering device, making it difficult to conduct effective detection. However, in the rain gauge provided by the present invention, a small amount of rainwater falling in the light rain state or a small amount of rainwater falling in a short time in the shower state can directly enter the detection inlet through the pilot hole, so that a small amount of rainwater can be detected by the detection mechanism, which can save the time consumed by infiltrating the filtering device, facilitate timely detection of rainfall, solve the technical problem that it is not easy to achieve effective detection of light rain or shower in the prior art, and can also improve the timeliness of detection and enhance the user experience.

[0011] Optionally, the filtering device has a first mounting surface, the rainwater collection main body has a second mounting surface, the first mounting surface and the second mounting surface cooperate with each other, and the detection inlet is opened on the second mounting surface.

[0012] The pilot hole is formed on the first mounting surface and / or the second mounting surface.

[0013] Optionally, a pilot groove is opened on the first mounting surface, and the second mounting surface and the pilot groove jointly form the pilot hole.

[0014] Optionally, the major axis in the radial direction of the pilot hole is less than or equal to 1 mm.

[0015] The shape of the pilot hole along its radial direction can be circular, elliptical, U-shaped, V-shaped, etc. The longest aperture dimension is its major axis. For example, when the opening of the pilot hole is circular, the major axis of the pilot hole is the diameter of the circle; for another example, when the pilot hole is elliptical, the major axis of the ellipse is the major axis of the pilot hole; for yet another example, when the pilot hole is U-shaped or V-shaped, the major axis of the pilot hole can be the center line of the U-shaped or V-shaped shape, etc. The major axis of the opening of the pilot hole is set to be less than or equal to 0.5 mm, so that the aperture of the pilot hole is small, so that the pilot hole has a filtering function, avoiding impurities such as dust particles in rainwater from entering the detection inlet through the pilot hole, so as to provide a protective effect for the detection mechanism.

[0016] Optionally, a sink is provided on the rain collection main body, the filtering device is installed in the sink, and the pilot hole is formed between the bottom wall of the sink and the filtering device. A gap is formed between the filtering device and the side wall of the sink, and the gap communicates the pilot hole and the rain receiving cavity.

[0017] Optionally, the filtering device includes a dust-proof cover and a first filter screen. The first filter screen is arranged inside the dust-proof cover, and the dust-proof cover is installed on the rain collection main body so that rainwater can enter the detection inlet through the dust-proof cover and the first filter screen in sequence. The pilot hole is formed between the dust-proof cover and the bottom wall of the sink, and the gap is formed between the dust-proof cover and the side wall of the sink.

[0018] Optionally, the dust-proof cover includes a dust-proof part and a base. The dust-proof part is installed on the base, the first filter screen is arranged inside the dust-proof part, the base is installed inside the sink, and the pilot hole is formed between the base and the bottom wall of the sink, and the gap is formed between the base and the side wall of the sink.

[0019] Optionally, a first groove is formed on the base, and the first groove and the side wall of the sink jointly form the gap.

[0020] And / or, a second groove is formed on the side wall of the sink, and the second groove and the base jointly form the gap.

[0021] Optionally, a liquid guiding surface is formed on one side of the base away from the bottom wall of the sink. The liquid guiding surface is located outside the dust-proof part and is concave.

[0022] By providing a concave liquid guiding surface, the rainwater on the liquid guiding surface can be guided in a direction away from the gap, so that the impurities in the rainwater can move away from the gap, reducing the amount of impurities accumulated at the gap, thereby slowing down the speed of the gap being blocked by impurities, increasing the effective continuous duration of the rain gauge, and improving the user experience.

[0023] Optionally, the filtering device further includes a bracket disposed inside the first filter screen, and the bracket and the dust cover jointly clamp the first filter screen.

[0024] And / or, the filtering device further includes a second filter screen, the second filter screen is matched with the detection inlet, and the second filter screen is installed on the bottom wall of the sink.

[0025] Optionally, the filtering device protrudes away from the detection inlet.

[0026] By making the filtering device protrude away from the detection inlet, it is possible to avoid the accumulation of impurities in rainwater causing blockage of the filtering device, so as to ensure that the filtering device can continuously and effectively filter rainwater. Even when a certain height of dust accumulates, it will not cause the water path of the filtering device to be blocked, thereby extending the effective continuous duration of the rain gauge and improving the user experience.

[0027] Optionally, a hydrophobic material layer is formed by coating on the concave surface of the rain receiving cavity.

[0028] By forming a hydrophobic material layer by coating on the concave surface of the rain receiving cavity, to ensure that when rainwater enters the interior of the rain receiving cavity, due to the hydrophobicity of the hydrophobic material layer, it is possible to avoid rainwater hanging on the wall, so that the rainwater can flow rapidly towards the detection inlet, so as to ensure that all the rainwater entering the interior of the rain receiving cavity can enter the detection inlet and be detected, which can improve the timeliness of rain gauge detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0030] Figure 1 is a schematic structural diagram of the rain gauge provided in the embodiment of the present application;

[0031] Figure 2 is a schematic cross-sectional structural diagram of the rain gauge provided in the embodiment of the present application;

[0032] Figure 3 is Figure 2 an enlarged structural diagram of part A in

[0033] Figure 4 is an exploded structural diagram of the rain gauge provided in the embodiment of the present application;

[0034] Figure 5It is a schematic structural diagram of the first perspective of the dust cover provided in the embodiment of the present application;

[0035] Figure 6 It is a schematic structural diagram of the second perspective of the dust cover provided in the embodiment of the present application;

[0036] Figure 7 It is a schematic structural diagram of the third perspective of the dust cover provided in the embodiment of the present application.

[0037] Icons: 10 - rain gauge; 100 - rain collection main body; 101 - detection inlet; 110 - rain receiving cavity; 111 - sink; 112 - second mounting surface; 200 - filtering device; 201 - first mounting surface; 202 - pilot hole; 203 - gap; 210 - dust cover; 211 - dust-proof part; 2111 - through hole; 2112 - assembly space; 212 - base; 2121 - pilot groove; 2122 - first groove; 2123 - protrusion; 2124 - rib; 2125 - liquid guiding surface; 220 - first filter screen; 230 - bracket; 240 - second filter screen; 300 - detection mechanism. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0042] In addition, terms such as "first" and "second" are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0043] It should be noted that, without conflict, the features in the embodiments of the present invention can be combined with each other.

[0044] Please refer to Figure 1 , this application provides a rain gauge 10, which is used to be set in a specified area of the external environment, and when it rains in the specified area, it can receive rainwater and judge the current rainfall amount based on the received rainwater. By receiving rainwater through the rain gauge 10 and detecting that the rainfall amount can reach the purpose of timely judging or predicting drought and flood disasters, etc. Therefore, the timeliness and accuracy of the rain gauge 10 in detecting rainfall are very important. The rain gauge 10 provided by this application can solve the technical problem that it is not easy to effectively detect light rain or shower rain in the prior art, and can also improve the timeliness of detection and enhance the user experience.

[0045] Among them, please refer to Figure 1 and Figure 2 , the rain gauge 10 includes a detection mechanism 300, a rain collection main body 100, and a filtering device 200. An inwardly concave rain receiving cavity 110 is provided on the rain collection main body 100 to receive rainfall through the rain receiving cavity 110; since the rain receiving cavity 110 is in an inwardly concave shape, the rainfall received can be gathered together through the rain receiving cavity 110, thereby facilitating the detection of the rainfall amount. In addition, a detection inlet 101 is opened at the bottom of the rain receiving cavity 110. In other words, the inwardly concave shape of the rain receiving cavity 110 can gather the received rainwater to the bottom of the rain receiving cavity 110, so as to direct the received rainwater to the detection inlet 101 and enter the interior of the rain collection main body 100 from the detection inlet 101. In order to facilitate the detection of the rainfall amount, the detection mechanism 300 is arranged inside the rain collection main body 100 and is matched with the detection inlet 101 to detect the amount of rainwater entering from the detection inlet 101. It should be noted that the detection mechanism 300 being matched with the detection inlet 101 means that the detection mechanism 300 is arranged corresponding to the detection inlet 101. When the rain gauge 10 is normally placed at the specified position, the detection mechanism 300 is located below the detection inlet 101, so that the rainwater entering the interior of the rain collection main body 100 from the detection inlet 101 can be detected by the detection mechanism 300. The filtering device 200 is installed at the detection inlet 101 of the rain collection main body 100 to filter the rainwater entering the detection inlet 101. In other words, at least part of the rainwater gathered in the rain receiving cavity 110 needs to be filtered by the filtering device 200 before entering the interior of the rain collection main body 100 from the detection inlet 101, so as to filter out the impurities in the rainwater through the filtering device 200 and prevent the impurities from affecting the detection mechanism 300.

[0046] If all the rainwater collected in the rain receiving cavity 110 needs to pass through the filtering device 200 before entering the interior of the rain collection main body 100 from the detection inlet 101, since it takes a certain amount of time to wet the filtering device 200, that is, the rainwater collected in the rain receiving cavity 110 takes a certain amount of time to pass through the filtering device 200 to enter the interior of the rain collection main body 100 from the detection inlet 101, it will cause a time lag in detecting the rainfall. In other words, it will cause a decrease in detection timeliness; specifically, it can be reflected that it is not easy to detect the rainfall in the case of light rain or shower, and it is difficult to detect the rainfall at the beginning of rainfall.

[0047] In the embodiments of the present application, please refer to Figure 2 and Figure 3 , to solve the technical problem that it is not easy to effectively detect light rain or shower in the prior art, and to improve the detection timeliness and enhance the user experience. A pilot hole 202 is formed between the filtering device 200 and the rain collection main body 100, and the pilot hole 202 conducts the detection inlet 101 and the rain receiving cavity 110. After the rain receiving cavity 110 receives rainwater, part of the rainwater is directly guided to the detection inlet 101 through the pilot hole 202, and then enters the interior of the rain collection main body 100 through the detection inlet 101, so as to be quickly detected by the detection mechanism 300, thereby improving the timeliness of detecting rainfall. Among them, when the external environment is in the case of light rain or shower, even if the rain receiving cavity 110 receives a small amount of rainwater, part of the rainwater can directly enter the pilot hole 202, and is guided from the pilot hole 202 to the detection inlet 101, so that the rainwater can be detected by the detection mechanism 300 in time, so as to ensure the timeliness and accuracy of detection during light rain or shower. And due to the setting of the pilot hole 202, at the beginning stage of rainfall, the rainwater received by the rain receiving cavity 110 can be directly guided to the detection inlet 101 through the pilot hole 202, and the detection mechanism 300 can quickly and efficiently detect the rainwater, further ensuring the accuracy and timeliness of detection during light rain or shower, and improving the detection timeliness of the rain gauge 10.

[0048] It should be noted that, in order to prevent impurities contained in rainwater from entering the detection inlet 101 through the pilot hole 202 and affecting the detection function of the detection mechanism 300, in the embodiments of the present application, the pilot hole 202 is set to have a smaller diameter so that the pilot hole 202 has a certain filtering effect. Optionally, the major axis in the radial direction of the pilot hole 202 is less than or equal to 1 mm, thereby implementing the pilot hole 202 being set to have a smaller diameter. Optionally, the major axis in the radial direction of the pilot hole 202 can take values such as 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm, etc. Among them, the opening shape of the pilot hole 202 can be circular, elliptical, polygonal, U-shaped or V-shaped, etc.; when the opening shape of the pilot hole 202 is circular, a circle is formed in its radial direction, and at this time, the major axis of the pilot hole 202 can be expressed as the diameter of this circle; when the opening shape of the pilot hole 202 is elliptical, an ellipse is formed in its radial direction, and at this time, the major axis of the pilot hole 202 can be expressed as the major axis of this ellipse; when the opening shape of the pilot hole 202 is polygonal, a polygon is formed in its radial direction, and at this time, the major axis of the pilot hole 202 can be expressed as the center line of this polygon; when the opening shape of the pilot hole 202 is U-shaped or V-shaped, a U-shaped or V-shaped shape is formed in its radial direction, and at this time, the major axis of the pilot hole 202 can be expressed as the longest center line of this U-shaped or V-shaped shape, etc. Of course, in some embodiments, in order to make the pilot hole 202 have filtering properties, other filtering components can also be arranged inside the pilot hole 202, such as adding a filter screen, etc.

[0049] It is worth noting that, on the premise of ensuring that the pilot hole 202 has effective filtering performance, the size of the major axis of the pilot hole 202 can be selected according to the actual situation. For example, in areas with strong winds and sand and open spaces, since the sand content in the air is high, resulting in a high sand content in rainwater, a pilot hole 202 with a smaller size can be selected, such as 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm or 0.5 mm, etc.; for another example, in areas with dense vegetation and low sand content, a pilot hole 202 with a larger size can be selected, such as 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm, etc.

[0050] In addition, in the embodiments of the present application, in order to facilitate the rainwater collected in the rain receiving cavity 110 to be guided to the filtering device 200, a water-repellent material is coated on the concave surface of the rain receiving cavity 110 to form a water-repellent material layer (not labeled in the figure). When the rainwater falls on the water-repellent material layer, due to the water-repellent property of the water-repellent material layer, the rainwater can easily and quickly flow along the water-repellent material layer to the filtering device 200, and the phenomenon of rainwater hanging on the wall can be avoided. Thus, when the external environment is in a light rain or shower situation, a small amount of rainwater entering the rain receiving cavity 110 can also be easily and quickly guided to the filtering device 200 on the water-repellent material layer, thereby improving the detection accuracy and timeliness. Of course, when the rain collection main body 100 is made of a water-repellent material, the coating of the water-repellent material layer can be cancelled.

[0051] Further, please refer to Figure 3 、 Figure 4 and Figure 5 In the embodiments of the present application, the filtering device 200 has a first mounting surface 201, and the rain collection main body 100 has a second mounting surface 112. When the filtering device 200 and the rain collection main body 100 are assembled and connected to each other, the first mounting surface 201 and the second mounting surface 112 cooperate with each other. Among them, the cooperation between the first mounting surface 201 and the second mounting surface 112 can be achieved by the first mounting surface 201 and the second mounting surface 112 being mutually attached. In addition, the detection inlet 101 is opened on the second mounting surface 112, and when the filtering device 200 is installed on the second mounting surface 112, the detection inlet 101 can be covered by the filtering device 200, so that part of the rainwater needs to pass through the filtering of the filtering device 200 before being introduced into the detection inlet 101. Optionally, the pilot hole 202 is formed on the first mounting surface 201 and / or the second mounting surface 112. In other words, the pilot hole 202 can be formed on the first mounting surface 201, or the pilot hole 202 is formed on the second mounting surface 112, or the pilot hole 202 is partially formed on the first mounting surface 201 and partially formed on the second mounting surface 112. It can be seen that the pilot hole 202 is provided at the bottom of the rain receiving cavity 110, which is convenient for the rainwater collected at the bottom of the rain receiving cavity 110 to enter the pilot hole 202, and thus can accurately and effectively complete the detection of the rainfall amount during light rain or shower, and can quickly complete the detection of the rainfall amount, achieving the purpose of improving the detection timeliness.

[0052] Among them, the way the pilot hole 202 is formed on the first mounting surface 201 can be as follows: as in the embodiment provided in this application, a pilot groove 2121 is opened on the first mounting surface 201. When the filtering device 200 is mounted on the second mounting surface 112, the second mounting surface 112 and the pilot groove 2121 together enclose the pilot hole 202. The way the pilot hole 202 is formed on the second mounting surface 112 can be: a groove is opened on the second mounting surface 112. When the filtering device 200 is mounted on the second mounting surface 112, the groove on the first mounting surface 201 and the groove on the second mounting surface 112 together enclose the pilot hole 202. The way the pilot hole 202 is formed between the first mounting surface 201 and the second mounting surface 112 can be: a groove is opened on the first mounting surface 201 and at the same time a groove is opened on the second mounting surface 112. When the filtering device 200 is mounted on the second mounting surface 112, the groove on the first mounting surface 201 and the groove on the second mounting surface 112 together enclose the pilot hole 202. It should be noted that in other embodiments of this application, the pilot hole 202 can also be opened at a position other than the first mounting surface 201 and the second mounting surface 112. For example, the pilot hole 202 is opened at a position of the filtering device 200 close to the bottom of the rain receiving cavity 110, and the pilot hole 202 is made to communicate with the detection inlet 101 and the rain receiving cavity 110, etc.

[0053] Of course, in order to efficiently and quickly complete the guiding of the rainwater collected in the rain receiving cavity 110, a plurality of pilot holes 202 can be provided between the filtering device 200 and the rain collecting main body 100. The plurality of pilot holes 202 are arranged in parallel with each other, so that the rainwater at the bottom of the rain receiving cavity 110 can enter the detection inlet 101 through the guiding of the plurality of pilot holes 202, further ensuring that the rainfall can be detected during light rain or shower rain, and improving the detection timeliness of the rain gauge 10. In addition, the plurality of pilot holes 202 are distributed around the filtering device 200, so that the rainwater received by the rain receiving cavity 110 from any position can enter the detection inlet 101 through the pilot holes 202, in order to ensure that the rainfall can be detected during light rain or shower rain and improve the detection timeliness.

[0054] Optionally, in an embodiment of the present application, a sunken groove 111 is provided on the rain collection main body 100, and the sunken groove 111 is located at the bottom of the rain receiving cavity 110. After the rain receiving cavity 110 receives rainwater, the rain receiving cavity 110 guides the rainwater to the sunken groove 111. In addition, the bottom wall of the sunken groove 111 forms the above-mentioned second mounting surface 112, that is, the filtering device 200 is installed inside the sunken groove 111 and cooperates with the second mounting surface 112, that is, a leading hole 202 is formed between the filtering device 200 and the bottom wall of the sunken groove 111. In addition, in order to facilitate the rain receiving cavity 110 to introduce rainwater into the sunken groove 111 and guide the rainwater to the detection inlet 101 through the leading hole 202, in an embodiment of the present application, a gap 203 is formed between the side wall of the filtering device 200 and the sunken groove 111, and the gap 203 communicates the leading hole 202 and the rain receiving cavity 110. After the rain receiving cavity 110 receives rainwater, the rain receiving cavity 110 guides the rainwater to the gap 203, the gap 203 guides the rainwater to the leading hole 202, and the leading hole 202 guides the rainwater to the detection inlet 101, so as to achieve the purpose of allowing some rainwater to preferentially enter the detection inlet 101 for rainfall detection, ensuring accurate and effective rainfall detection in the case of light rain or shower, and achieving the purpose of improving the detection timeliness.

[0055] It should be noted that, in other embodiments of the present application, the setting of the sunken groove 111 can also be cancelled. When the setting of the sunken groove 111 is cancelled, the setting of the gap 203 is also cancelled. Thus, a leading hole 202 can be directly formed between the filtering device 200 and the rain collection main body 100, and the rainwater is guided to the detection inlet 101 only from the leading hole 202.

[0056] In addition, to facilitate the rapid diversion of rainwater by the gap 203 to the pilot hole 202, in the embodiment of the present application, the width of the gap 203 is set to have a relatively small size, so that when the gap 203 receives rainwater, it can quickly guide the rainwater to the pilot hole 202, thereby quickly completing the detection of rainfall. Optionally, the width dimension range of the gap 203 can be set to be less than or equal to 5 mm. For example, the width value of the gap 203 can be 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm or 5 mm, etc. Of course, the width dimension of the gap 203 can also be set to be equal to the major axis dimension of the pilot hole 202. Further, to avoid the situation where the liquid in the gap 203 and the pilot hole 202 cannot flow due to air pressure, air holes (not marked in the figure) for balancing air pressure can be provided on the rain collection main body 100 or the filtering device 200. For example, the air holes can be opened at the bottom of the rain collection main body 100 to avoid being blocked by rainwater or impurities. Another example is that the air holes can be the mesh holes on the filtering device 200 for filtering rainwater. In other words, the mesh holes on the filtering device 200 for filtering rainwater can be used as air holes for balancing air pressure. Of course, in some embodiments of the present application, the width of the gap 203 can be relatively large, so that more rainwater can be received. At this time, to facilitate the rapid diversion of the rainwater inside the gap 203 to the pilot hole 202, the bottom wall of the sink 111 can be set to be concave. In other words, the second mounting surface 112 is set to be a concave surface, providing a certain guiding effect on the rainwater from the second mounting surface 112 to the bottom of the sink 111 to quickly guide the rainwater to the pilot hole 202. It should be noted that when the second mounting surface 112 is set to be a concave surface, the first mounting surface 201 can be adapted to the second mounting surface 112, that is, the first mounting surface 201 can be set to be a convex surface.

[0057] Furthermore, in the embodiments of the present application, the filtering device 200 may include a dust-proof cover 210 and a first filter screen 220. The first filter screen 220 is disposed inside the dust-proof cover 210, and the dust-proof cover 210 is installed on the rain collection main body 100 so that rainwater can enter the detection inlet 101 successively through the dust-proof cover 210 and the first filter screen 220. It should be noted that the dust-proof cover 210 is used to filter out impurities with larger sizes, such as leaves, branches or other insects; the first filter screen 220 is used to filter rainwater to filter out impurities in the rainwater. Optionally, the dust-proof cover 210 has an assembly space 2112 inside, and a plurality of through holes 2111 communicating with the assembly space 2112 are formed on the dust-proof cover 210. The struts formed between every two through holes 2111 can be used to prevent impurities such as leaves, branches or insects from entering the inside of the assembly space 2112. The first filter screen 220 is assembled inside the assembly space 2112 and the first filter screen 220 is attached to the inner side surface of the assembly space 2112, so that the rainwater entering the assembly space 2112 from the through holes 2111 can be filtered by the first filter screen 220 in time, facilitating the rapid filtration of rainwater and its entry into the detection inlet 101, improving the filtration effect while increasing the rate of rainwater entering the detection inlet 101.

[0058] The bottom of the dust-proof cover 210 is inserted into the sink 111, and a pilot hole 202 is formed between the bottom wall of the dust-proof cover 210 and the bottom wall of the sink 111. A gap 203 is formed between the side surface of the dust-proof cover 210 and the side wall of the sink 111. Optionally, the dust-proof cover 210 includes a dust-proof part 211 and a base 212. The base 212 is annular, that is, a through hole is provided in the middle of the base 212. The dust-proof part 211 is disposed on the base 212, and the inner cavity of the dust-proof part 211 and the hole on the base 212 together form an assembly space 2112. The through holes 2111 are formed on the dust-proof part 211, and the outer side of the first filter screen 220 is attached to the inner side surface of the dust-proof part 211 and the inner side wall of the hole on the base 212 to provide a comprehensive filtering effect. In the embodiments of the present application, the base 212 is installed inside the sink 111. A pilot hole 202 is formed between the bottom surface of the base 212 and the bottom wall of the sink 111. In other words, the bottom surface of the base 212 is set as the first installation surface 201, and the bottom wall of the sink 111 is the second installation surface 112. A gap 203 is formed between the side surface of the base 212 and the side wall of the sink 111.

[0059] Optionally, please refer to Figure 4 、 Figure 5 、 Figure 6 and Figure 7, in the embodiments of the present application, the base 212 is generally circular, and a plurality of first grooves 2122 are formed on the outer circumference of the base 212. The plurality of first grooves 2122 are arranged at equal intervals. When the base 212 is installed inside the sink 111, a gap 203 is jointly formed between the plurality of first grooves 2122 and the inner side wall of the sink 111. Correspondingly, between every two adjacent first grooves 2122, it can be regarded that a protrusion 2123 is formed on the outer circumference of the base 212, and the protrusion 2123 abuts against the inner side wall of the sink 111. The plurality of protrusions 2123 arranged at equal intervals simultaneously abut against the inner side wall of the sink 111. Thus, a certain positioning effect and limiting effect can be provided to the base 212 through the plurality of protrusions 2123, which is convenient for the base 212 to be installed on the rain collection main body 100. Further, in the embodiments of the present application, the base 212 is fixed to the rain collection main body 100 by fixing members such as screws. In order to avoid the screws affecting the pilot hole 202, the openings corresponding to the screws on the base 212 are arranged on the above-mentioned protrusion 2123. Thus, while the protrusion 2123 provides a positioning effect and a limiting effect, the protrusion 2123 can also be used for the mutual connection between the base 212 and the rain collection main body 100; of course, in other embodiments, other methods can also be adopted to realize the mutual connection between the base 212 and the rain collection main body 100, such as bonding or clamping, etc.; it should be noted that when the base 212 and the rain collection main body 100 are mutually connected, the mutual connection mode between the protrusion 2123 and the rain collection main body 100 can be adopted. It should be noted that in some embodiments of the present application, in order to form the gap 203, the size of the base 212 can also be set to be smaller than the size of the sink 111, so that when the base 212 is inserted into the sink 111, an annular gap 203 is jointly formed between the outer peripheral edge of the base 212 and the inner side wall of the sink 111. At this time, the purpose of guiding the rainwater at the bottom of the rain receiving cavity 110 to the pilot hole 202 can also be achieved through the gap 203. Of course, at this time, it can also be regarded that a first groove 2122 is formed on the outer peripheral edge of the base 212, and the gap 203 is jointly formed between the first groove 2122 and the inner side wall of the sink 111.

[0060] In some other embodiments of the present application, the gap 203 can also be formed in other ways. For example, the first groove 2122 is cancelled, and a second groove (not shown in the figure) is formed on the inner side wall of the sinking groove 111. When the base 212 and the sinking groove 111 cooperate with each other, the outer peripheral edge of the base 212 and the second groove jointly form the gap 203. Of course, in still other embodiments, the gap 203 can also be formed by the cooperation of the first groove 2122 and the second groove. In other words, while the first groove 2122 is formed on the outer peripheral edge of the base 212, the second groove is formed on the inner side wall of the sinking groove 111, and the first groove 2122 and the second groove jointly enclose the gap 203. Of course, when the first groove 2122 and the second groove are provided simultaneously, multiple gaps 203 can also be formed in such a way that the first groove 2122 and the inner side wall of the sinking groove 111 form the gap 203, and the second groove and the outer peripheral edge of the base 212 form the side wall. As described above, it can be expressed as: the first groove 2122 is formed on the base 212, and the first groove 2122 and the side wall of the sinking groove 111 jointly form the gap 203, and / or, the second groove is formed on the side wall of the sinking groove 111, and the second groove and the base 212 jointly form the gap 203.

[0061] In addition, in the embodiments of the present application, a plurality of pilot grooves 2121 extending along the radial direction thereof are formed on the first mounting surface 201 of the base 212, and each first groove 2122 correspondingly forms a plurality of pilot grooves 2121. The plurality of pilot grooves 2121 are all communicated with the hole in the middle of the base 212. When the base 212 and the sinking groove 111 cooperate with each other, the pilot grooves 2121 and the bottom wall of the sinking groove 111 jointly form the pilot holes 202, and the plurality of pilot holes 202 are communicated with the gap 203 formed by the corresponding first groove 2122. Optionally, the shape of the pilot groove 2121 is U-shaped or V-shaped to facilitate the formation of the pilot groove 2121. In other embodiments, the pilot groove 2121 can also be formed by providing a plurality of convex strips 2124 on the raised portion 2123 on the first mounting surface 201. Each convex strip 2124 extends along the radial direction of the base 212, and the plurality of convex strips 2124 are arranged at intervals, so that a pilot groove 2121 is formed between every two convex strips 2124. Of course, in some embodiments of the present application, when the pilot holes 202 are formed by grooving on the second mounting surface 112, the plurality of pilot grooves 2121 on the base 212 can be cancelled at this time, and the first mounting surface 201 on the base 212 and the grooving on the second mounting surface 112 jointly form the pilot holes 202.

[0062] Further, to facilitate the formation of the gap 203 and the installation of the dust cover 210, there is a certain distance between the outer side of the dust-proof portion 211 and the outer peripheral edge of the base 212. Thus, on the side of the base 212 away from the bottom wall of the sunken groove 111, that is, on the side of the base 212 away from the first mounting surface 201, a liquid guiding surface 2125 is formed, and the liquid guiding surface 2125 is located outside the dust-proof portion 211. The liquid guiding surface 2125 can guide rainwater towards the inside of the dust-proof portion 211. To increase the rate of rainwater entering the interior of the filtering device 200, the liquid guiding surface 2125 is set to be concave to provide a certain guiding effect through the liquid guiding surface 2125 to facilitate rainwater entering the interior of the filtering device 200. Additionally, while the liquid guiding surface 2125 guides rainwater towards the filtering device 200, the liquid guiding surface 2125 can also guide the impurities contained in the rainwater towards the filtering device 200, thereby providing a guiding force for the impurities in the rainwater to move away from the gap 203, slowing down the rate of impurity accumulation in the gap 203, increasing the effective working time of the gap 203, that is, increasing the effective detection time of the rain gauge 10 during normal operation, and enhancing the user experience.

[0063] It should be noted that in the embodiments of the present application, the concave inner peripheral wall in the rain receiving cavity 110 and the liquid guiding surface 2125 can guide rainwater towards the detection inlet 101. In other words, the detection inlet 101 can be regarded as the central position of the rain receiving cavity 110, and the filtering device 200 installed at the detection inlet 101 can also be considered to be located at the central position of the rain receiving cavity 110. At this time, since the gap 203 is located at the outer peripheral edge of the base 212, the inner peripheral wall of the rain receiving cavity 110 and the liquid guiding surface 2125 can, while providing a guiding effect for the rainwater, also provide a force for the rainwater passing through the gap 203 to move away from the gap 203, causing some impurities to accumulate on the liquid guiding surface 2125, thereby achieving the purpose of slowing down the rate of impurity accumulation in the gap 203, increasing the effective working time of the gap 203, that is, increasing the effective detection time of the rain gauge 10 during normal operation, and enhancing the user experience.

[0064] In the embodiments of the present application, please continue to refer to Figure 4, the filtering device 200 may further include a bracket 230 and a second filter screen 240. The bracket 230 is disposed inside the first filter screen 220, so as to provide a supporting effect on the first filter screen 220 through the bracket 230, ensuring that the first filter screen 220 can fit inside the dust-proof cover 210 to enhance the filtering ability provided by the first filter screen 220. Among them, the shape of the bracket 230 is adapted to the shape of the dust-proof portion 211, so that the bracket 230 and the dust-proof portion 211 can jointly clamp the first filter screen 220 to achieve the purpose of ensuring the installation stability of the first filter screen 220. The second filter screen 240 cooperates with the detection inlet 101, and the second filter screen 240 is installed on the bottom wall of the sink 111. When the rainwater filtered by the first filter screen 220 flows to the detection inlet 101, it is further filtered by the second filter screen 240 to further reduce the content of impurities in the rainwater, thereby preventing the detection mechanism 300 from being damaged. In addition, when the rainwater is guided to the detection inlet 101 from the gap 203 and the pilot hole 202, the second filter screen 240 can also provide a filtering effect on the rainwater, providing a further filtering effect on the rainwater, thereby reducing the content of impurities in the rainwater to prevent the detection mechanism 300 from being damaged. It should be noted that in other embodiments of the present application, at least one of the bracket 230 and the second filter screen 240 may be cancelled. For example, the bracket 230 may be cancelled. At this time, the first filter screen 220 is directly attached to the dust-proof cover 210. Of course, other fixing methods may be used to fix the first filter screen 220 on the dust-proof cover 210, so as to achieve the purpose of the first filter screen 220 fitting inside the dust-proof portion 211 to ensure that the first filter screen 220 can provide an effective filtering effect; for another example, the second filter screen 240 may be cancelled. Since the first filter screen 220 and the pilot hole 202 can both provide an effective filtering effect, the content of impurities in the rainwater can be reduced to a certain extent, thereby preventing the impurities in the rainwater from damaging the detection mechanism 300; for yet another example, both the bracket 230 and the second filter screen 240 may be cancelled. The above can be regarded as that the filtering device 200 may further include the bracket 230 and / or the second filter screen 240.

[0065] In addition, please refer to Figure 1 and Figure 4, after the rain gauge 10 has been used for a certain period of time, a large amount of impurities, such as dust, leaves or insects, will accumulate in the rain receiving cavity 110. This may clog the first filter screen 220 and the gap 203. At this time, manual cleaning is required to facilitate the normal operation of the rain gauge 10. In the embodiment of the present application, in order to reduce the cleaning frequency of the rain gauge 10, that is, to increase the effective duration of a single use of the rain gauge 10, the filtering device 200 is set to protrude 2123 away from the detection inlet 101. Optionally, the dust-proof cover 210, the bracket 230 and the first filter screen 220 are set to be funnel-shaped, and the dust-proof cover 210, the bracket 230 and the first filter screen 220 are installed at the detection inlet 101 in an inverted manner, so that the entire filtering device 200 protrudes from the concave surface of the rain receiving cavity 110. After being used for a period of time, due to the accumulation of impurities, the impurities will start to accumulate from the bottom of the filtering device 200 close to the detection inlet 101, so as not to affect the normal operation of the top of the filtering device 200 away from the detection inlet 101. That is, when a part of the impurities accumulates at the bottom of the rain receiving cavity 110, the use of the rain gauge 10 is not affected, thus effectively extending the effective use duration of the rain gauge 10, reducing the manual cleaning frequency, and improving the user experience.

[0066] In summary, in the rain gauge 10 provided in the embodiments of the present application, when there is light rain or shower, a small amount of rainwater enters the rain receiving cavity 110, and slides along the inner peripheral wall of the concave rain receiving cavity 110 to the filtering device 200. Since the filtering device 200 needs to be infiltrated for a certain period of time to allow the rainwater to pass through the filtering device 200 and enter the detection inlet 101 to be detected by the detection mechanism 300, in the state of light rain or shower, the small rainfall or short rainfall time results in a long infiltration time of the filtering device 200, making it difficult to conduct effective detection. However, in the rain gauge 10 provided by the present invention, a small amount of rainwater falling in the light rain state or a small amount of rainwater falling in a short time in the shower state can directly enter the detection inlet 101 through the pilot hole 202, so that a small amount of rainwater can be detected by the detection mechanism 300, saving the time consumed by infiltrating the filtering device 200, facilitating the timely detection of rainfall, solving the technical problem that it is not easy to achieve effective detection in light rain or shower in the prior art, and improving the timeliness of detection and the user experience. By setting the concave liquid guide surface 2125, the rainwater on the liquid guide surface 2125 can be guided in the direction away from the gap 203, so that the impurities in the rainwater can move away from the gap 203, reducing the amount of impurities accumulated at the gap 203, thereby slowing down the speed of the gap 203 being blocked by impurities, increasing the effective continuous duration of the rain gauge 10, and enhancing the user experience. By protruding the filtering device 200 away from the detection inlet 101, it can prevent the accumulation of impurities in the rainwater from blocking the filtering device 200, ensuring that the filtering device 200 can continuously and effectively filter rainwater. Even if a certain height of sand and dust accumulates, it will not cause the water path of the filtering device 200 to be blocked, thereby extending the effective continuous duration of the rain gauge 10 and enhancing the user experience. At the same time, by coating a hydrophobic material layer on the inner concave surface of the rain receiving cavity 110, when rainwater enters the interior of the rain receiving cavity 110, due to the hydrophobicity of the hydrophobic material layer, it can prevent the rainwater from hanging on the wall, enabling the rainwater to flow quickly towards the detection inlet 101, ensuring that all the rainwater entering the interior of the rain receiving cavity 110 can enter the detection inlet 101 and be detected, and improving the timeliness of detection of the rain gauge 10.

[0067] As mentioned above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A rain gauge, characterized in that, It includes a detection mechanism, a rainwater collection body, and a filtering device; An inwardly concave rain collection cavity is provided on the rainwater collection body, a detection inlet is opened at the bottom of the rain collection cavity, and the detection mechanism is arranged inside the rainwater collection body and is matched with the detection inlet for detecting the amount of rainwater entering from the detection inlet; The filtering device is installed at the detection inlet of the rainwater collection body for filtering the rainwater entering the detection inlet; a leading hole is formed between the filtering device and the rainwater collection body, and the leading hole conducts the detection inlet and the rain collection cavity; The filtering device has a first mounting surface, the rainwater collection body has a second mounting surface, the first mounting surface and the second mounting surface cooperate with each other, and the detection inlet is opened on the second mounting surface; The leading hole is formed on the first mounting surface and / or the second mounting surface.

2. The rain gauge according to claim 1, characterized in that, A leading groove is opened on the first mounting surface, and the second mounting surface and the leading groove jointly form the leading hole.

3. The rain gauge according to claim 1, characterized in that, The major axis in the radial direction of the leading hole is less than or equal to 1 mm.

4. The rain gauge according to claim 1, characterized in that, A sunk groove is provided on the rainwater collection body, the filtering device is installed in the sunk groove, and the leading hole is formed between the bottom wall of the sunk groove and the filtering device; a gap is formed between the filtering device and the side wall of the sunk groove, and the gap conducts the leading hole and the rain collection cavity.

5. The rain gauge according to claim 4, characterized in that, The filtering device includes a dust-proof cover and a first filter screen. The first filter screen is arranged inside the dust-proof cover. The dust-proof cover is installed on the rainwater collection body so that rainwater can enter the detection inlet through the dust-proof cover and the first filter screen in sequence; the leading hole is formed between the dust-proof cover and the bottom wall of the sunk groove, and the gap is formed between the dust-proof cover and the side wall of the sunk groove.

6. The rain gauge according to claim 5, characterized in that The dust-proof cover includes a dust-proof part and a base. The dust-proof part is installed on the base. The first filter screen is arranged inside the dust-proof part. The base is installed inside the sunk groove, and the leading hole is formed between the base and the bottom wall of the sunk groove, and the gap is formed between the base and the side wall of the sunk groove.

7. The rain gauge according to claim 6, characterized in that, A first groove is opened on the base, and the first groove and the side wall of the sunk groove jointly form the gap; And / or, a second groove is opened on the side wall of the sunk groove, and the second groove and the base jointly form the gap.

8. The rain gauge according to claim 7, characterized in that, A liquid guiding surface is formed on one side of the base away from the bottom wall of the sunk groove. The liquid guiding surface is located outside the dust-proof part and is inwardly concave.

9. The rain gauge according to claim 5, characterized in that, The filtering device further includes a bracket. The bracket is arranged inside the first filter screen, and the bracket and the dust-proof cover jointly clamp the first filter screen; And / or, the filtering device further includes a second filter screen. The second filter screen is matched with the detection inlet and is installed on the bottom wall of the sunk groove.

10. The rain gauge according to any one of claims 1-9, characterized in that, The filtering device protrudes away from the detection inlet.

11. The rain gauge according to any one of claims 1-9, characterized in that, A water-repellent material layer is coated and formed on the inwardly concave surface of the rain collection cavity.

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